Update the link to the Aprende a Programar con Ruby.

Typo

The link is outdated because the GitHub organization maintaining the book
changed their name. The link currently works because of a redirect, but it
would better to replace it with the current link.

Reorder go list

Update index for Groovy/Gradle/Grails.

Added 'Linkers and Loaders' book

Not quite sure but the 'compilers' section seems to be the closest fit.  Author has freely downloadable manuscript in TROFF and Postscript and links to purchase hard copy on Amazon etc

Add Groovy/Gradle/Grails documents in Japanese.

[init] - TLA

Add Introducción a Rails to the list of spanish books.

This book is a spanish translation of the official guide "Getting Started
with Rails."

Create C# and Visual Basic section from .NET section (close #878)

Removed Nemerle because link is broken.

Added a Few Mathematics Books and HDL (Verilog, VHDL) Books

update fork

Added version numbers for all python topics where versions were accessible.

Cleaned up Django version issue + added versions to Flask and Pandas.

[en] Adding Python book

Added a few Books and some courses

Add free release of Bunnie Huangs Hacking the Xbox